80104540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:526

約数の個数: 48

約数和(自身を含む): 171686592

約数和(自身を除く): 91582052

約数列:

[1, 2, 4, 5, 10, 20, 97, 157, 194, 263, 314, 388, 485, 526, 628, 785, 970, 1052, 1315, 1570, 1940, 2630, 3140, 5260, 15229, 25511, 30458, 41291, 51022, 60916, 76145, 82582, 102044, 127555, 152290, 165164, 206455, 255110, 304580, 412910, 510220, 825820, 4005227, 8010454, 16020908, 20026135, 40052270, 80104540]

約数ペア:

[(1, 80104540), (2, 40052270), (4, 20026135), (5, 16020908), (10, 8010454), (20, 4005227), (97, 825820), (157, 510220), (194, 412910), (263, 304580), (314, 255110), (388, 206455), (485, 165164), (526, 152290), (628, 127555), (785, 102044), (970, 82582), (1052, 76145), (1315, 60916), (1570, 51022), (1940, 41291), (2630, 30458), (3140, 25511), (5260, 15229)]